gesdisc-cloud-tutorials's Issues
PermissionError:
Hi everyone,
I am trying to access IMERG data on aws bucket. I followed gesdics-tutorial example as follows,
from netrc import netrc
from subprocess import Popen
from getpass import getpass
import os
import requests
import s3fs
gesdisc_s3 = "https://data.gesdisc.earthdata.nasa.gov/s3credentials"
# Define a function for S3 access credentials
def begin_s3_direct_access(url: str=gesdisc_s3):
response = requests.get(url).json()
return s3fs.S3FileSystem(key=response['accessKeyId'],
secret=response['secretAccessKey'],
token=response['sessionToken'],
client_kwargs={'region_name': 'us-west-2'})
def main():
urs = 'urs.earthdata.nasa.gov' # Earthdata URL endpoint for authentication
prompts = ['Enter NASA Earthdata Login Username: ',
'Enter NASA Earthdata Login Password: ']
netrc_name = ".netrc"
# Determine if netrc file exists, and if so, if it includes NASA Earthdata Login Credentials
try:
netrcDir = os.path.expanduser(f"~/{netrc_name}")
netrc(netrcDir).authenticators(urs)[0]
# Below, create a netrc file and prompt user for NASA Earthdata Login Username and Password
except FileNotFoundError:
homeDir = os.path.expanduser("~")
Popen('touch {0}{2} | echo machine {1} >> {0}{2}'.format(homeDir + os.sep, urs, netrc_name), shell=True)
Popen('echo login {} >> {}{}'.format(getpass(prompt=prompts[0]), homeDir + os.sep, netrc_name), shell=True)
Popen('echo \'password {} \'>> {}{}'.format(getpass(prompt=prompts[1]), homeDir + os.sep, netrc_name),
shell=True)
# Set restrictive permissions
Popen('chmod 0600 {0}{1}'.format(homeDir + os.sep, netrc_name), shell=True)
fs = begin_s3_direct_access()
# Check that the file system is intact as an S3FileSystem object, which means that token is valid
# Common causes of rejected S3 access tokens include incorrect passwords stored in the netrc file, or a non-existent netrc file
# Files are organized by s3://gesdisc-cumulus-prod-protected/MERRA2/M2T1NXSLV.5.12.4/year/mo/*.nc4
fn = 's3://gesdisc-cumulus-prod-protected/MERRA2/M2T1NXSLV.5.12.4/2019/03/MERRA2_400.tavg1_2d_slv_Nx.20190313.nc4'
fs.info(fn) ## Error occurs when executing this line
if __name__ == "__main__":
main()
However, I got the following error
botocore.exceptions.ClientError: An error occurred (403) when calling the HeadObject operation: Forbidden
Any ideas of what could be wrong?
Cheers,
Alfonso
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